Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    22-04-2024 19:26

General

  • Target

    2024-04-22_2b11872b7e3ddc4e96682e597e406ac8_destroyer_wannacry.exe

  • Size

    27KB

  • MD5

    2b11872b7e3ddc4e96682e597e406ac8

  • SHA1

    5f045aa9c4a5c46b96a85f5c382d33427e98b4cf

  • SHA256

    df5a7564ad18463b2dafc86631ae4a120423a17efc32977532b41aac6b83febf

  • SHA512

    19d6dc254d0bb54d42a0cc11e861fa2e0fd69793a3e8f67332d8f6d8debb9a88c808c3bca4dd8caa2c5c21c9b5c1c182d97ab64c08c0c62ac8c186d64a201269

  • SSDEEP

    384:xtWZPzzxAm1vFzaGh2r7OUmgFRYfdQPyRlZOy5o91Tecv82v4:47zxAmuGUrEgnYwWho95eI82w

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\read_it.txt

Ransom Note
Don't worry, you can return all your files! All your files like documents, photos, databases and other important are encrypted What guarantees do we give to you? You can send 3 of your encrypted files and we decrypt it for free. You must follow these steps To decrypt your files : 1) Write on our Telgram :@katerose042 ( In case of no answer in 24 hours check your spam folder or write us to this : @katerose042) 2) Obtain Bitcoin (You have to pay for decryption in Bitcoins. Adress : 1FcQuP9kvbQDuvwFxj6aguLBVvnfwbv5R2 After payment we will send you the tool that will decrypt all your files.)
Wallets

1FcQuP9kvbQDuvwFxj6aguLBVvnfwbv5R2

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

  • Chaos Ransomware 3 IoCs
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Detects command variations typically used by ransomware 3 IoCs
  • Detects executables containing many references to VEEAM. Observed in ransomware 3 IoCs
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Disables Task Manager via registry modification
  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-04-22_2b11872b7e3ddc4e96682e597e406ac8_destroyer_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-22_2b11872b7e3ddc4e96682e597e406ac8_destroyer_wannacry.exe"
    1⤵
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1756
    • C:\Users\Admin\AppData\Roaming\Btc.exe
      "C:\Users\Admin\AppData\Roaming\Btc.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops desktop.ini file(s)
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3040
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2572
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:2740
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2200
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2760
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2876
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2976
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1128
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:1676
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt
        3⤵
        • Opens file in notepad (likely ransom note)
        PID:2776
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2608
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2376
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:2044
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
        PID:1508

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\read_it.txt

        Filesize

        619B

        MD5

        121dd6796c66c39da573dc7e2f8154ad

        SHA1

        c9e14ba00f49428e79ff9a4ad621f9afdb5e2ad5

        SHA256

        2252da15981065c0046d5d881e69a5c0205391ad6837442c1df623868aadff21

        SHA512

        04f882ce194313ee3e166a0a1cde7401c42a36600829eebacca136b87eb01bbf68a70c3ad895f7ba804968bc1f53fd61d50dbf77ab3accd7f84e123fe6c5ec16

      • C:\Users\Admin\AppData\Roaming\Btc.exe

        Filesize

        27KB

        MD5

        2b11872b7e3ddc4e96682e597e406ac8

        SHA1

        5f045aa9c4a5c46b96a85f5c382d33427e98b4cf

        SHA256

        df5a7564ad18463b2dafc86631ae4a120423a17efc32977532b41aac6b83febf

        SHA512

        19d6dc254d0bb54d42a0cc11e861fa2e0fd69793a3e8f67332d8f6d8debb9a88c808c3bca4dd8caa2c5c21c9b5c1c182d97ab64c08c0c62ac8c186d64a201269

      • C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Notepad.lnk

        Filesize

        1B

        MD5

        d1457b72c3fb323a2671125aef3eab5d

        SHA1

        5bab61eb53176449e25c2c82f172b82cb13ffb9d

        SHA256

        8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

        SHA512

        ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

      • memory/1756-0-0x0000000000D30000-0x0000000000D3E000-memory.dmp

        Filesize

        56KB

      • memory/1756-1-0x000007FEF5570000-0x000007FEF5F5C000-memory.dmp

        Filesize

        9.9MB

      • memory/1756-2-0x000000001A830000-0x000000001A8B0000-memory.dmp

        Filesize

        512KB

      • memory/1756-9-0x000007FEF5570000-0x000007FEF5F5C000-memory.dmp

        Filesize

        9.9MB

      • memory/3040-10-0x000007FEF5570000-0x000007FEF5F5C000-memory.dmp

        Filesize

        9.9MB

      • memory/3040-8-0x0000000000850000-0x000000000085E000-memory.dmp

        Filesize

        56KB

      • memory/3040-11-0x000000001AEE0000-0x000000001AF60000-memory.dmp

        Filesize

        512KB

      • memory/3040-880-0x000007FEF5570000-0x000007FEF5F5C000-memory.dmp

        Filesize

        9.9MB